Trying to connect to a Minecraft server- game freeze. Singleplayer is okay.

Put the summary of the bug you're having here

What I expected to happen was...:
I would connect to my favorite server, which was running a few custom plugins, and be able to enjoy talking with my friends, raid, pvp, etc.

What actually happened was...:
It froze at the point it said "Logging in...", and when I clicked within the MC window, it went gray and said Not Responding. I closed it, and it gave me exit code -805306369. I went to a different server, which ran well-tested plugins, and it went through the same error, same exit code.

Steps to Reproduce:
1. Enter Minecraft
2. Enter a server

Servers tested have multiple worlds (creative world, survival world, etc.)